Everything originates from you. Upon you depends everything. You are called Kala, you are called Purusha, you are called Brahma. Celestial Rishis well read in the Puranas, say that you are triune.
त्वत्तः प्रवर्तते सर्वं त्वयि सर्वं प्रतिष्ठितम्॥ कालाख्यः पुरुषाख्यश्च ब्रह्माख्यश्च त्वमेव हि। तनवस्ते स्मृतास्तिस्रः पुराणज्ञैः सुरर्षिभिः॥