Explanation:

- In the sentence, "This religious gift, that makes men human, is still alive in Indian souls," the word "religious" pertains to faith or spiritual belief.

- Option 1: mystical - refers to an experience involving mystery or spirituality, which is related but not the most direct match for "religious."

- Option 2: spiritual - directly relates to matters involving the soul or faith, closely aligning with "religious." Correct Answer

- Option 3: metaphysical - deals with philosophical studies of existential concepts, broader and not specifically "religious."

- Option 4: philosophical - pertains to the study of fundamental principles, broader in scope than "religious."