Human life is (1) _______ a unique blessing, which in turn depends on the (2) _______ of the Self. He who is not aware of the Self can neither have peace nor can he foster peaceful co-existence. We have to link our soul with God and body with the physical world for substance. (3) _______ the formless God is invisible to the naked eye, our mind often wanders wherever it goes. (4) _______ , we are unable to develop any love for the Divine. And religion like the white light of heavens (5) _______ multi-coloured fragmentations by the prisms of men and loses its gravity. Instead of uniting, it becomes a major dividing force. French philosopher Tailhard de Chardin, thinking deeply on meaning of our existence and relationship with the Divine, expounds, “we are not human beings having a spiritual experience, we are spiritual beings having a human experience”.

Select the most appropriate option to fill in blank no. 2.

The correct option to fill in blank (2) is awareness.

Step-by-step Explanation:
1. Analyze the grammatical structure: The blank occurs in the phrase "...depends on the (2) _______ of the Self." The presence of the definite article "the" before the blank and the prepositional phrase "of the Self" following it indicates that the missing word must function as a noun.
2. Evaluate the options:
- witness (noun/verb): Although "witness" can be a noun, "witness of the Self" does not fit the spiritual and philosophical context of self-realization discussed in the passage.
- known (adjective/verb participle): This cannot function as a noun in this context.
- aware (adjective): This is an adjective. We cannot say "the aware of the Self".
- awareness (noun): This is a noun representing the state or condition of being conscious or cognizant of something. It fits both the grammatical requirements and the intended meaning perfectly.
3. Contextual Clue: The sentence immediately following the blank states, "He who is not aware of the Self...", which reinforces that the paragraph is discussing one's awareness of the Self.