In the book Unposted Letter, author Mahatria Ra has compiled selective articles picked from his edited magazine InfiniThoughts or Frozen Thoughts. Each article is written on various themes of attitude, life, and personal circumstances. The idea behind each article is to guide the readers to a self-directive lifestyle and a strong and thoughtful mind. The content of the book helps the readers in simplifying tough situations and handling them easily.

Be it personal advice, suggestions related to one’s profession, or handling certain circumstances, the author has brought together the best articles that revolve around such topics. Readers can find a significant number of articles suiting their way of life.

Included are ideologies and philosophical ideas of various world-famous leaders. Intellectual textual excerpts from the Bhagavad Gita and Bible help list down desirable sets of ideas, concepts, and actions that help the readers progress in a wholesome way. Numerous inspirational quotes are included as well in the book. The magazine from which these articles are picked focuses on self-awakening and spirituality.