6 min read·
House Systems Implementation Guide for Astrology Applications
Learn the differences between Placidus, Whole Sign, Equal, and Koch house systems and how offering multiple calculation methods serves diverse astrological traditions.
Hiroshi Kagawa
I-Ching Scholar & Dream Analyst
Japan
Hiroshi Kagawa holds a Ph.D. in East Asian Philosophy from Kyoto University and has researched the I-Ching as a decision-making and divination framework for 25 years. He has translated two classical I-Ching commentaries into modern Japanese and teaches hexagram interpretation at Waseda University's extension program. His work on dream symbolism in Buddhist and Taoist traditions is widely cited in East Asian metaphysics literature.
Ph.D. East Asian Philosophy, Kyoto University25 years of researchPublished I-Ching translator
I-ChingHexagram interpretationDream analysisAngel numbersEast Asian metaphysicsTaoist philosophy
36 articles published
Articles by Hiroshi Kagawa
9 min read·
What Does It Mean When You Dream About Falling? Complete Interpretation Guide
Discover the psychology behind falling dreams - from anxiety and loss of control to life transitions. Explore what your falling dreams reveal about your subconscious mind.
10 min read·
Complete Guide to Tarot Card Meanings: All 78 Cards Explained
Learn the meaning of all 78 tarot cards, including Major and Minor Arcana. Upright and reversed interpretations for every card in the deck.
6 min read·
Understanding Planetary Aspects for Astrology App Development
Learn how planetary aspects create the dynamic story in birth charts and why aspect calculations are essential for comprehensive astrology applications.
12 min read·
The Ten Wings of I Ching: Understanding Confucian Commentary
Explore the Ten Wings commentaries that deepen I Ching interpretation. Learn how Confucian scholars transformed the Book of Changes into philosophical wisdom.
7 min read·
building-daily-horoscope-feature-astrology-api-personalized-forecasts
Create engaging daily horoscope features with personalized forecasts based on sun signs and planetary transits. Learn caching strategies, notification timing, and user retention tactics.
11 min read·
How to Monetize a Spiritual App: Pricing Models That Actually Work
Learn proven monetization strategies for astrology, tarot, numerology, and dream apps. Freemium, subscriptions, marketplaces, and revenue benchmarks.
11 min read·
The 8 Trigrams Explained: Heaven, Earth, Thunder, Wind, Water, Fire, Mountain, Lake
Master the 8 I Ching trigrams with meanings, elements, and family relationships. Essential foundation for understanding hexagrams and bagua symbolism.
6 min read·
Building Transit Tracking Features with Real-Time Astrology API
Create engaging transit tracking that shows how current planetary movements affect user birth charts. Learn notification strategies, timing predictions, and personalized forecast delivery.
12 min read·
I Ching for Beginners: How to Consult the Book of Changes
Learn how to use the I Ching (Book of Changes) for guidance and decision-making. Hexagrams, trigrams, changing lines, and consultation methods explained.
14 min read·
AI Agents Calling Real APIs: How Tool Calling and MCP Work in Practice
See how AI agents actually call APIs in production. Real examples of OpenAI function calling, Claude tool use, Gemini ADK, and MCP with request/response flows and code you can run today.
17 min read·
Tarot API Integration Guide: Add Card Readings to Your iOS/Android App
Complete technical guide for integrating tarot readings into mobile apps. Learn API authentication, endpoint structure, response handling, error management, and real-world code examples for iOS and Android.