- Arcturus is the brightest star in the northern constellation of Boötes. With an apparent visual magnitude of −0.05, it is the fourth-brightest star in the night sky, and the brightest in the northern celestial hemisphere. The name Arcturus originated from ancient Greece; it was then cataloged as α Boötis by Johann Bayer in 1603, which is Latinized to Alpha Boötis. Arcturus forms one corner of the Spring Triangle asterism.
- Sufism (Wikipedia)
Sufism (Arabic: الصُّوفِيَّة aṣ-ṣūfiyya), also known as Tasawwuf (التَّصَوُّف at-taṣawwuf), is a mystic body of religious practice found within Islam which is characterized by a focus on Islamic purification, spirituality, ritualism, asceticism, and esotericism. It has been variously defined as “Islamic mysticism”, “the mystical expression of Islamic faith”, “the inward dimension of Islam”, “the phenomenon of mysticism within Islam”, the “main manifestation and the most important and central crystallization” of mystical practice in Islam, and “the interiorization and intensification of Islamic faith and practice”.