Όταν χαζεύω τη θάλασσα από τη βεράντα, νιώθω ότι παίρνω δύναμη για την επόμενη μέρα.

Greek often drops subject pronouns when they are not needed, because the verb ending already shows the person.

• χαζεύω = I gaze / I daydream / I look absent-mindedly
• νιώθω = I feel
• παίρνω = I take / I get

So Greek does not need εγώ unless the speaker wants emphasis:

• Εγώ νιώθω... = I feel... (emphatic)

Όταν means when or whenever.

In this sentence, it has a general / repeated meaning:

• Όταν χαζεύω τη θάλασσα...
  = When / Whenever I gaze at the sea...

So it does not refer to one single future moment. It describes something that happens regularly.

The present tense is used here because the sentence describes a habitual or general experience:

• χαζεύω = I gaze / whenever I gaze
• νιώθω = I feel
• παίρνω = I get / I gain

Greek uses the present very naturally for things that are generally true or happen repeatedly. English often does the same:

• When I look at the sea, I feel stronger.

So this is not about one single moment only, but about a recurring feeling.

Χαζεύω is a very common Greek verb, but it does not have one perfect English equivalent.

Depending on context, it can mean:

• to gaze at
• to watch absent-mindedly
• to stare
• to admire
• to daydream while looking at something

In this sentence, χαζεύω τη θάλασσα suggests something like:

• I gaze at the sea
• I sit looking at the sea
• I lose myself watching the sea

It has a relaxed, reflective feeling.

Because θάλασσα is the direct object of χαζεύω.

• η θάλασσα = the sea as the subject
• τη(ν) θάλασσα = the sea as the object

Compare:

• Η θάλασσα είναι όμορφη. = The sea is beautiful.
  (η θάλασσα = subject)
• Χαζεύω τη θάλασσα. = I gaze at the sea.
  (τη θάλασσα = object)

So the sentence uses the accusative case.

Both are connected to the same article: την.

In modern Greek, την is very often shortened in speech and writing to τη before many consonants:

• τη θάλασσα
• τη μέρα
• τη βεράντα

This is completely normal and very common.

So:

• την θάλασσα = more full form
• τη θάλασσα = usual shortened form

Both mean the same thing.

Από usually means from, and here it shows the viewpoint / place from which the speaker is looking.

• από τη βεράντα = from the balcony / from the veranda

So the idea is:

• I look at the sea from the balcony

It tells you where the speaker is standing or sitting while looking.

Ότι means that and introduces a clause after verbs like feel, think, know, say, etc.

So:

• νιώθω ότι παίρνω δύναμη
  = I feel that I gain strength

In natural English, you might simply say:

• I feel I gain strength
• I feel recharged
• I feel like I gain strength

In Greek, ότι is very standard here.

Literally, παίρνω δύναμη means I take strength.

But idiomatically, it means something like:

• I gain strength
• I feel strengthened
• I recharge
• I draw strength

So yes, it is understandable literally, but in real use it often means to feel renewed, encouraged, or energized, not just physically stronger.

Για means for, and την επόμενη μέρα means the next day or the following day.

So:

• παίρνω δύναμη για την επόμενη μέρα
  = I gain strength for the next day

The article την is used because it refers to a specific upcoming day in relation to the speaker’s experience.

Also note:

• επόμενη = next / following
• μέρα = day

After για, Greek uses the accusative, which is why you get την επόμενη μέρα.

The first part of the sentence is a time clause:

• Όταν χαζεύω τη θάλασσα από τη βεράντα

The second part is the main clause:

• νιώθω ότι παίρνω δύναμη για την επόμενη μέρα

Greek normally separates this kind of opening subordinate clause with a comma, just as English often does:

• When I gaze at the sea from the balcony, I feel...

So the comma helps show the sentence structure clearly.

Yes. Greek word order is quite flexible, although some versions sound more natural than others.

The original sentence is very natural:

• Όταν χαζεύω τη θάλασσα από τη βεράντα, νιώθω ότι παίρνω δύναμη για την επόμενη μέρα.

You could also say:

• Νιώθω ότι παίρνω δύναμη για την επόμενη μέρα όταν χαζεύω τη θάλασσα από τη βεράντα.

This still means the same thing, but the focus shifts slightly toward νιώθω first.

Greek often changes word order for emphasis, rhythm, or style, not because the grammar changes.