"V'im beheimah asher yakrivu mimena korban laShem kol asher yitein mimenu laShem yiyeh kodesh (27:9)
And if an animal which you will bring from it a sacrifice for Hashem, whatever he shall give from it to Hashem will be holy."
If someone who is led by his animalistic desires will decide to come a bit closer to Hashem, every little bit that he will sacrifice for Hashem from his "animal nature" for Hashem's sake is holy!