Mental posture refers primarily to an attitude of mind, and constitutes the sacred trust between chela and Guru . Those who wish to become sincere and true servants of all mankind with its immense suffering, and of the Great Masters of Wisdom with their inexhaustible light, must prepare themselves by a process of purgation whereby they negate the false conceptions of themselves derived from the world into which they are born, from their heredity, upbringing, environment and education. This is done by a method of intense self-questioning.
Platonic thought is essentially a dialogue with oneself.
When people really begin to ask questions of themselves, and also attempt to apply the principles involved in formulating questions in a multiplicity of contexts, then they gradually begin to glimpse the dynamic, albeit mysterious, relation between manifest and unmanifest. Actually, it is then even more accessible to men of meditation. Not to men of meditation. But, alas, most human beings are not men of meditation. They have never really thought seriously, hungered sufficiently, wanted with enough intensity of one-pointed devotion, the great Teaching in relation to the immortality of the soul.