The churning separates the butter from the milk. In the same manner, through cosmic processes and upheavals of heat and cold, the five fundamental elements - earth, water, fire, air and space were separated and Earth, this Ball of Butter, emerged as the product of the churning.
Internally I am a hermit, and externally I am a prince. Arms mean protection to the poor and destruction of the tyrant. Baba Nanak had not renounced the world but had renounced maya, that is, self and ego.
Food to a large extent is what holds a society together and eating is closely linked to deep spiritual experiences.
Not knowing the consequence of good and evil karmas, he is afflicted and hurt. Nevertheless, he, due to his egotism, piles up karmas and undergoes births and deaths again and again.
To exercise forgiveness is a great act. Forgiveness is equal to ablutions at all places of pilgrimage. Forgiveness ensures your salvation. There is no virtue equal to forgiveness.

