Community of Muhammad, Muhammed ummeti

I was listening to this hymn from Yunus Emre (1240?–1321?)
http://pan-cck.blogspot.com/2010/12/sordum-sari-cicege-by-yunus-emre.html and this part that I couldn't previously give much meaning to, caught my attention:
"I asked the yellow flower:
Whose community is yours?
She replied: Father Dervish,
My community is that of Muhammad.
Truth is there is no deity but The One God."
Today finally this thought was given to my mind: Yunus means that any creation that proclaims the oneness of the Creator belongs to Muhammad's community.
Even tough one says they don't believe in the existence of a Creator, their body and heart and conscience and mind all witness and continuously point to the Oneness of God and thus they all belong to Muhammad's community.
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Yunus Emre'nin "Sordum Sari Cicege" ilahisini dinlerken daha once pek de anlam yukleyemedigim su sozleri dikkatimi cekti:
"Sordum sarı çiçeğe,
Sen kimin ümmetisin?
Çiçek der derviş baba,
Muhammed ümmetiyim.
Hak lâ ilahe illallah. (Hakikat o ki, ilah yoktur Allah'tan baska)"
Bugun shu dusunce aklima indirildi: Yunus demek istiyor ki, Yaradan'in Birligini ilan eden tum yaratiklar Muhammed'in ummetindendir.
Birisi bir Yaratici'nin varligina inanmadigini soylese de, bedeni ve kalbi ve vicdani ve akli, hepsi Tanri'nin birligine sehadet ediyor ve devamli O'nu gosteriyor ve bu nedenle hepsi Muhammed'in ummetindendir.