As a vast tree lies within a small unblown Ashvatha flower and is seen only when it comes out, so birth takes place from what is unmanifest.
यथाश्वत्थकणीकायामन्तर्भूतो महाद्रुमः। निष्पन्नो दृश्यते व्यक्तमव्यक्तात् सम्भवस्तथा॥