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first english is not my mothertongue, so if i make mistakes, correction are
welcome. i'm reading an adult light novel and have some problem translating
and understanding precisely two sentences. First i will give the whole
paragraph for context:

> 自分の身体すらも認識することのできない、心地良い浮遊感。 _まるでゆりかごに揺られるかのように、ゆっくり **と** 、 その意識は傾いては元の位置
> **へと** 戻る_。奇妙な感覚ではあったが、 それは決して不快ではなかった。 **
> _すでに記憶にはない、母の胎内というのはこんな感覚なのだろうか、とぼんやりとした思考が生まれて、そして流れていく。_**

The first phrase i don't understand is this sentence:

> まるでゆりかごに揺られるかのように、ゆっくりと、 その意識は傾いては元の位置へと戻る

It's not that i don't understand the vocabulary,i understand it very well.
It's about the two particles i marked in bold, と and へと, especially へと which
giving me trouble in understanding the phrase and translating it precisely in
my head.

The second i cannot translate it in my head at all, i don't know if it's
because i got troubled with that other phrase but i really cannot understand
the phrase. It's the phrase which I put in bold above:

> すでに記憶にはない、母の胎内というのはこんな感覚なのだろうか、とぼんやりとした思考が生まれて、そして流れていく

Why are there two は particles in the phrase? Can someone help me please?
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2018-03-14T22:19:01.320
57281
2018-03-15T13:05:58.977
2018-03-15T04:14:55.900
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question
grammar translation meaning particles
Need help with particles to understand sentences
1. と after ゆっくり is "the optional と". This is a FAQ. 
    * [What does adding と after an adverb do?](https://japanese.stackexchange.com/q/42163/5010)
    * [What is the purpose of adding と?](https://japanese.stackexchange.com/q/24943/5010)
    * [What role does と play in this sentence?](https://japanese.stackexchange.com/q/36764/5010)
    * [usage of と in this sentence](https://japanese.stackexchange.com/q/49003/5010)
  2. と after 元の位置へ is explained in this question. 
    * [Particle と with へ; ～へと](https://japanese.stackexchange.com/q/9343/5010)
  3. すでに記憶にはない is a relative clause that modifies 母の胎内. "The internal of Mother's uterus, about which I no longer have memory." The first は is は used with negative clauses. 「すでに記憶にはない、母の胎内というのはこんな感覚なのだろうか」 is the content of his 思考. 
    * [Why is the topic marker often used in negative statements (ではない, ～とは思わない)?](https://japanese.stackexchange.com/q/1077/5010)
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2018-03-15T13:05:58.977
57284
2018-03-15T13:05:58.977
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57281
answer