Sometimes spiritualists imagine that since a material form is a limitation, therefore God cannot possibly have a form.
In some religious tradition, the form of God is not at all described.
Some imagine some form of God according to their own concoctions.
It is not that God does not have a form or that His form is imaginary. But it is that one needs to approach the form of God properly.
God’s form is called “saccidananda vigraha”, or that which is composed of sat (eternality), chit(purely conscious knowledge), and ananda(unmitigated bliss). This form of God is unlimited, not constrained by space or time, neither does God’s form deteriorate like material forms.
In a beautiful section of the Srimad Bhagavatam, Lord Kapila, an incarnation of the Supreme Personality of Godhead, describes the process of devotional service.
Here is one beautiful text, an example for you to relish.
ज्योत्स्नाभिराहतमहद्धृदयान्धकारम् ॥ २१ ॥
sañcintayed bhagavataś caraṇāravindaṁ
The devotee should first concentrate his mind on the Lord’s lotus feet, which are adorned with the marks of a thunderbolt, a goad, a banner and a lotus. The splendor of their beautiful ruby nails resembles the orb of the moon and dispels the thick gloom of one’s heart.https://vedabase.io/en/library/sb/3/28/21/
God has feet, which defeat the splendour of a lotus in full bloom. The soles of His lotus feet are adorned with specific marks.
Each and every mark has specific significance. Just the lustre of His beautiful red toenail can be compared to a full moon.
Meditating on the lotus feet of God dispels all gloom.
Why can we not meditate on the lotus feet of the Lord?