It is called home, a place so unique there is no other like it on earth, indeed the entire universe.
Nature randomly imprints each human with a homing instinct, an unseen but powerful life force.
Like the earth's gravitational pull towards true North, it points in one direction at the exclusion of all others. It matters not where home is be it mansion or shed. What makes it unique is that it's more distinctly appealing for each person than any other singular location on earth. It alone furnishes a sense of belonging, a point of reference whence from all other subsequent life experiences follow. Affinity for one's land of birth is felt ever stronger and with a greater sense of urgency by expatriates, who by choice or circumstance, live in isolation away from familiar faces, traditions and culture.