Consider Ayat 154, Surah Baqra.

As-Salaam alaikum,
In ayat 154 of Surah Baqra of the Holy Qur'an (2:154), Allah Ta'ala says:--
"And say not of those who are slain
in the way of Allah, 'They are dead'.
Nay, they are living, though you perceive
it not."

This ayat is explained by/in Hadith wherein the Prophet, Sallallahu alaihi Wasallam, said:--

"When your brothers from Uhud were touched (by death), Allah placed their spirits in a green bird that drinks from the rivers of Paradise, eats its fruits and rests near golden candles hanging in the shadow of the Throne.
When they saw that their food, drink and resting places were good, they said : 'Who will let our brothers know that we are alive in Paradise, and that we receive our subsistence, that they may not skimp in the struggle, and that they do not abdicate in the war? Allah, Subhanahu Wa Ta'ala, said' I will let them know. And it was then that Allah brought down :-- "And say not of those... (2:154)

In any case, if your rationale for life is that you eat and move around, thay also eat. Whatever you eat of grain, fruit or meat is a product of dust, you consume dust, they consume Noor (Divine Light).