Bhagavad Gita 2.32
यदृच्छया चोपपन्नं स्वर्गद्वारमपावृतम्।
सुखिनः क्षत्रियाः पार्थ लभन्ते युद्धमीदृशम्।।2.32।।
Yadrichchhaya chopapannam svargadvaramapavritam
Sukhinah kshatriyah partha labhante yuddhamidrisham
Simple meaning, written by AIHeaven’s gate opens and closes by chance; happy warriors obtain a battle like this.