Why Hindus worship Cow?

All the parts of the Cow denote 33 Divine Energies as per our Sanathana Dharma:-

Body Part	Name of Deva
1. Right Eye	Sun
2. Left Eye	Moon
3. Right Nostril	Mitra
4. Left Nostril	Varuna
5. Forehead	Siva
6. Above Forehead	Kubera - The lord of North & Wealth
7. Right Horn	Jaya
8. Left Horn	Vijaya
9. Right Ear	Budha (Mercury)
10. Left Ear	Bhruhaspati (Jupiter)
11. Throat	Saraswathi - Goddess of Wisdom & Speech
12. Upper part of Throat	Vageeshwari - The vocal Speech
13. Lower part of Throat	NakuliVageeshwari - Subtle Speech
14. Right Thigh	Bhairav – Time as witness
15. Left Thigh	Hanuman
16. Right Heel to Ankle	Meru of the East
17. Left Heel to Ankle	Ameru of the West
18. Heart	Vishnu
19. Hump	Brahma - The creator
20. Stomach	Agni
21. Below Stomach	Bhoodevi - Goddess of Earth
22. Udder	Amrithasagar (Ocean of Immortality)
23. Above Udder Hierarchy	(Kumaras, Seven Seers and Naradha)
24. Tip of the Spine	Parvathi (Sakthi)
25. Hind	Sridevi - Goddess of Wealth
26. Below Hind	The celestial sacred waters (Rivers)
27. Tail	Serpent of Time
28. Right Thigh	Divine Path
29. Left Thigh	Path of Pitris
30. Right Leg	From South Pole Heel to Ankle
31. Left Leg	From North Pole Heel to Ankle
32 Teats Front Right Front Left Back Right Back Left	Rig Veda Yajur Veda Sama Veda Atharvana Veda
33. Four Hooves Front Right Front Left Back Right Back Left	Existence Awareness Thought Action