Tupan

Also called Tupã, Tupa.

The Tupi-Guarani thunder demon, squat and wavy-haired, whose name the missionaries took for the Christian God and which now means sacred.

Near this figure

Judged against the description by a model. Meanings are our own paraphrase.

Hair bears image-domain Hair denotes vitality and the state of the head it grows from, ordered or wild, shorn in renunciation, and red for ardour and suspicion alike.
why
Tupan is the old thunder power of the eastern Tupi-Guarani peoples of Brazil — the Tupinamba among them — and the descriptions give him an actual body rather than a principle: short-statured, man-shaped, the hair in waves.
Thunder is image-domain Thunder denotes the voice of the high god heard as anger, assent or presence, a shock that disorients and wakes, and the herald of rain.
why
The Tupi-Guarani thunder demon, squat and wavy-haired, whose name the missionaries took for the Christian God and which now means sacred.

Read from the figure's description, which a model wrote. Open "why" for the sentence a trait came from.

Controls wind rain and thunder
why
He belongs to the thunder in the sense the older sources intend by calling him a demon, which is a power of the weather rather than a moral agent with intentions toward anybody.

Lightning control
why
Tupan is the old thunder power of the eastern Tupi-Guarani peoples of Brazil — the Tupinamba among them — and the descriptions give him an actual body rather than a principle: short-statured, man-shaped, the hair in waves.