Forms can be divided into causal and resultant forms, and furthermore into fifteen:

• 1-4: the four causal forms, which are the Four primary elements | four elements of earth, water, fire and wind.
• 5-9: the five sense objects of visual form, sound, smell, taste and texture.
• 10-14: the five sense faculties of eye, ear, nose, tongue and body.
• 15: the imperceptible form. This can further be subdivided into five: form of particles, spatial form, form resulting from a fully taken promise, imagined form and mastered form.<ref>Jamyang Drakpa in Padmasambhava & Jamgön Kongtrul. The Light of Wisdom Volume 1 (Hong Kong: Rangjung Yeshe Publications, 1999), page 185. </ref>

Forms 5-15 are said to be resultant forms.

<small><references/></small>

Category of Buddhist Key Terms Category of Five skandhas