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…this inmost soul, that is, the central psychic being, influences the superficial parts of the consciousness (superficial in comparison with it: mental parts, vital parts). The purest mind, the highest vital, the emotive being—the soul influences them, influences them to an extent where one has the impression of entering into contact with it through these parts of the being. So people take these parts for the soul and that is why he says "the inmost soul", that is, the central soul, the real soul. <ref>http://incarnateword.in/cwm/07/3-august-1955#p9</ref>

The surface of the heart centre is the place of the emotional being; from there one goes deep to find the psychic. The more one goes, the more intense becomes the psychic happiness which you describe. <ref>http://incarnateword.in/cwsa/30/the-psychic-being-and-its-role-in-sadhana#p17 </ref>