The Guru Granth Sahib states the doctrine of jot in a single often quoted line: the light is in all, and all are in that light. Sikh teaching reads this as a claim about the actual constitution of every being, not a figure of speech, holding that a single divine light, undivided by the apparent separateness of individual bodies and personalities, is present in every created thing. This is the true self, sometimes named atma, and Sikh theology treats the entire devotional project, naam simran chief among its practices, as a matter of recognizing this light rather than acquiring or earning it, since it is already present and only obscured.
What obscures it is haumai, the self-centered ego this atlas records as a separate doctrine: the habitual, constructed sense of a separate "I" that experiences itself as cut off from other beings and from God. Jot and haumai are best understood as a matched pair rather than as independent doctrines, one naming the true self a person already is, the other naming the illusion that prevents its recognition. Sikh teaching is explicit that overcoming haumai does not create or add the light; it removes what was covering something already there. That is why the tradition frames liberation as recognition rather than attainment, and why it is available within an ordinary working life rather than only to a renunciant.