I know the calm Transcendent bears the world,
The veiled Inhabitant, the silent Lord:
I feel his secret act, his intimate fire;
I hear the murmur of the cosmic Voice.
Sri Aurobindo
Savitri, Book IX, Canto II, page 594.
What you feel as the new life is the growth of the inner being in you; the inner being is the true being and as it grows the whole consciousness begins to change. This feeling and your new attitude towards people are signs of the change. The seeing of inner things also usually comes with this growth of the inner being and consciousness; it is an inner vision which awakes in most sadhaks when they enter this stage.
It is also a characteristic of this inner consciousness that even when it is active, there is felt behind the action or containing it a complete quietude or silence. The more one concentrates, the more this quietude and silence increases. That is why there seems to be all quiet within even though all sorts of things may be taking place within.
It is also quite usual that what takes place in the inner consciousness should not express itself at present in the outer physical. It at first creates changes inside, but takes possession of the outer instruments only afterwards.
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The things you feel are due to the fact that the consciousness goes inside, so physical things are felt as if they were at a distance. The same phenomenon can happen when one goes into another plane of consciousness and sees physical things from there. But it is probably the first that is happening with you. When one goes quite inside, then physical things disappear, — when some connection is kept, then they become distant. But this is a transitory change. Afterwards you will be able to have the two consciousnesses together, be in your psychic in one part of yourself with all the experience and activities of the psychic being and nature and yet with your surface self fully awake and active in physical things with the psychic support and influence behind this outer action.
Sri Aurobindo,
Letters on Yoga III, CWSA volume 30, pages 223 – 224.