If you modify an Indus symbol by adding one point of light at each of the cardinal points, it means that it is true everywhere. In other words, it is always true. This is the ideograph for a small package surrounded by four points of light. Hence, the translation is: small package always.
Illustrative Text Reference:
Mohenjo-daro: Seal: M-675 a: Sayid Ghulam Mustafa Shah and Asko Parpola, 1991: Corpus of Indus Seals and Inscriptions: Volume 2: Page 34: Collections in Pakistan: Suomalainen Tiedeakatemia.
Image Credit:
Indus Script Sign Number 390: Sign List of the Indus Script: Iravatham Mahadevan, 1977: The Indus Script: Texts, Concordance and Tables: The Director General Archaeological Survey of India.