This section is from the "May I Answer That?" book, by Sri Swami Sivananda. Also available from Amazon: May I Answer That?
How will you get God's grace? When you discipline yourself. How will you know how to discipline? By observing others that had walked the path successfully to the goal of perfection. Who are these men who had walked to the goal? It is these that are known as Gurus. So you need their help, their personal example, their encouragement and their grace. Thus, we have come round to the answer that a Guru is necessary as well as his grace. Everything is necessary Atma Kripa, Guru Kripa and Isvara Kripa.
Keep your intellect in a box. Love and wisdom are one. Bhakti and Jnana are one. Prema leads to Jnana. The one helps the other. People read books and start arguments. Is this great? Or is that great? It is all foolishness. God is both love and wisdom. One should not waste his time in these useless arguments.
Why! You can do wonderful Sadhana there also. The world is not a hindrance. You have got a very practical and thorough knowledge of Vedanta. The fiery spirit of Ram Tirth is in you. Start Brahmamuhurta meditation classes. This is the greatest service you can do to the citizens of Lucknow. Go from Mohalla to Mohalla and preach Vedanta. Open study circles in each Mohalla. Conduct morning Brahmamuhurta meditation classes in each Mohalla by turn. You would be doing a great service to all humanity and to yourself. Awaken people to the real purpose of their life. This would keep your consciousness awake too.
O, yes. The soul must undergo various experiences in different bodies. In the male body, the soul experiences the qualities of boldness, strength, etc., and patience, mercy, kindness, forgiveness, etc. in the female body. Moreover, neither a man is a full man nor a woman a full woman. There is woman in man and man in woman also. There are animal traits also in man. There is the dog in some men, there is the donkey in some, there is the jackal in some and the tiger in others. Whichever quality is predominant, the soul takes a body with that particular quality in the next incarnation. Therefore, develop divine qualities. You will evolve quickly and become divinity itself in the end.
What! Having been born a Hindu, and having the blood of the great sages coursing through your veins, do you entertain this doubt in your mind? Yes, undoubtedly there is rebirth.
First of all, you have several miraculous instances of young boys and girls suddenly exhibiting great knowledge. A young girl, who has never studied any book, recites the Gita. How do you account for it except by the fact that she had mastered the Gita in her previous birth, and that by the grace of the Lord, that knowledge has come to the conscious part of her mind in this birth too?
Further, rebirth is a necessity for the soul's evolution. Perfection cannot be achieved in one birth. Even to develop some cardinal virtues it might take several births. If you wish to attain Self-realization, you have to achieve perfection in all the virtues. You have to achieve perfect self-purification. So, rebirth is a necessity for the Jiva's evolution.
Have you seen the caterpillar moving from one leaf to another? It will reach the edge of one leaf; then project itself; it will catch hold of another leaf, and then only will it entirely leave the first leaf. The Jiva, too, goes about like this. Even before it leaves one body, it has made another (gross or subtle) body according to its Karmas and desires; and it enters this new body with all the Samskaras and Vasanas.
 
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